Features Specifications:Sell VIP-115B professional speaker  The Karaoke system, The Subwoofer VIP-155B, with LF15'' HF Voice coil x 2 . The power of the system is 300W RMS 8Ohm, which is manly designed for small KTV rooms, back ground music for Bar, Hall, and for home used. The VIP-155B is compact and powerful, deeper extension.  specification: 1.Rated power: 300W RMS 2.Program power: 600W 3. Components: LF 15'', voice coil x 2 4. Sensitivity: 96db 5. Impedance: 8Ohm 6. Frequency range: 30Hz-300Hz 7. Dimensions: 430 x 650 x 800 mm